Schneider Electric 9999D10 Auxiliary Contact

Schneider Electric's Square D 9999D10 Auxiliary Contact is a single normally open auxiliary contact block designed to accompany Definite Purpose (DPA) contactors in the 20–90 A range. It provides an additional contact rated at 3 A at 120 VAC, enabling auxiliary signaling or interlock logic in control circuits without loading the main power path. This 9999D10 accessory is specified for use with 20–90 A DPA contactors from the Square D/Schneider Electric lineup, expanding control options in motor control centers, equipment panels, and automation circuits. The compact module installs alongside the main contactor to deliver a convenient feedback contact for PLCs, relays, or other control devices, helping operators verify contactor status and synchronize control actions. Key specifications include 1 NO contact, 3 A at 120 VAC, and compatibility with 20–90 A DPA contactors; part number 9999D10.